Automatic machine for cutting paper gaskets



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Mar. 6, i923. r 1,447,381 C. W. GRAHAM AUTOMATIC MACHINE.FOR CUTTINGPAPER GASKE H Filed Apr. 22, 1918 16 sheets-sheet 8 WITNESSES: v H 355 Il/VI/E/VTOR M M da w M D 49 Y BY/ A TTOR/VEY 1,44713'81 v c. w. GRAHAMAUTOMATIC MACHINE FOR CUTTING PAPER GASKETS Mar.,6, 1923. j

Filed Apr. 22, 1918 16 sheets sht 9 gan:

Mar. 6, 1923. 1,447,381 3 W. GRAHAM AUTOMATIC,MAHiNE CUTTING PAPERGASKETS Filed A131. 22, 1918 16 sheets-sheet 1OJlllllllllllllllllllllllllllllll IllllllljllllllllllllllllillllllllllllW Mar. 6, 1923.

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- v c. w. GRAHAM AUTOMATIC MACHINE FOR CUTTING PAPER GASKETS Filed Apr.22, 1918 16 sheets-sheet 12 Mar. 6, 1923. I 1,447,381

C. W. GRAHAM AUTOMATIC MACHINE FOR CUTTING PAPER A5KET Filed Apr. 22,-1918 16 h1=h8ij L5;

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C.WGRAHAM ALJTQMATIQ MACHINE FOR CUTTING PAPER GASKETS Filed Apr; 2 16sheets-sheet 14 ml! J65 w I MWMMHMTMII I ATTORNEYS c..w. GRAHAMAUTOMATIC MACHINE FOR CUTTING PAPER GASKET S ET ATTORNEYS 1,447,381 C.W. GRAHAM AUTOMATIC MACHINE FOR CUTTING PAPER GASKETS Filed Apr. 22,.1918 16 simeefis-sheet l6 WITNESSES:

Patented Mar. 6, 1923.

river CHARLES w. GRAHAM, 0 ALLEEDALE, NEW JERSEY, AssIenoR T0 AMERICANCAN COMPANY, or NEW YoRK, n. Y., A coRro rIoN 013' new JERSEY.

AUTOMATIC IMACHINE FOR CUTTING PAPER. GASKETS.

Application filed April 22, 1918. Serial No. 229,952.

To all whom it may concern: 1

Be it known that I, CHARLEs lV. GRAHAM, a citizen of the United States,residing in Allendale, in the county of Bergen and State of New Jersey,have invented a new and useful Improvement in Automatic Machines forCutting Paper Gaskets,of which the following is aspecification.

This invention relates to a machine for automatically cutting. can endgaskets or liners and core disks from web material and can ends or onthe cores to, cut from them gaskets of smaller size. The gaskets as outare rings of relatively large diameter and small width and consequentlyextremely frail and the invention contemplates the arrangement of suchgaskets or liners in a stack formation sufiiciently compact to en-' ablethe gaskets to present a solid outer surface of substantially thestrength of a, tube of thickness equal to the width of the gasket, sothat each gasket is able to resist tearing with the accumulativestrength of a large number of gaskets upon each side of it. I

A further object of the invention is the provision of a machine of thischaracter which will insure the provision in said stacks of only linersof perfect formation, so that the usable number of gaskets in the stackis equal to the entire number of gaskets therein contained. A furtherobject of the invention'is the provision of a gasket lining machine towhich a counter and recording device may be attached to count and recordthe number of gaskets cut, the operation of the machine beingsufficiently accurate to justify reliance upon the data furnished bysaid counting and recording device.

Another and highly important object of the invention is the provision ofa feed of A further object of the invention is the provision of anapparatus of the character described which will not require the continuous attention of an attendant, the construction being such that heneed only replace the filled stacks with empty ones, and such also thathe need not watch the operation of the machine to insure substantiallyperfect production, means being provided to cause stoppage of themachine should the parts work imperfectly.

Astill further object ofthe invention is the provision of a machine ofrelatively simpleand economic construction, ready adjustment andprolonged and enduring efficiency. 1

Other objects and advantages ofthe invention will be apparent asit isbetter understood from the following description when considered inconnection with the accompanying drawing illustrating a preferredembodiment thereof.

On the drawings,

Figure 1 is a front elevation of a machine embodying my presentinvention;

2 is an end elevation looking from the left in Fig. 1;

a Fig. 3 is an end elevation looking from the right in Fig. 1;

i Fig. 1 is .a slightly enlarged top plan view of the machine shown inFig. 1;

Fig. 5 is a horizontal section taken substantially on the line 5-5 ofFig. 1;

Fig. 6 is a similarsection on the line 66 of Fig. 10;

Fig. 7 is a section taken substantially on the line 77 of Fig. 1;

Fig. 8 is a similar section taken substantially on the line 8-8 of Fig.1;

views showing different positions of the paper feeding and trippingmechanism and taken on the line 14-1t in Fig. 13;

Fig. 15 is a partial section of the operating parts of the pin clutchand taken on the same vertical plane as the right hand upper part ofFig. 9, andon a larger scale;

Fig. 16 is a partial vertical section taken .on the line 1616 of Fig.4:;

Fig. 21 is avertical section through the.

same on the line 21-21 of Fig.. 20;

Fig. 22 is a perspective view of a gasket; Fig. 23 is a perspective viewof a core or center;

Fig. 9A is a top plan View of a. truck for arrying said stacks for thegaskets and for the cores or centers;

Fig. 25 is a side elevation of the same; Fig. 26 is an end view of suchtruck; Fig. 27 is a full size view of a record from the recordingcounters of the number .of

gaskets provided by the machine and in the various stacks; I

Fig. 28 is a view of a tag for attachment to the .filledstacks;

Fig. 29 is a partial vertical section on the;

line 2929 of Fig. 10;

Fig. 30 is a similar view and showing certain parts indifferentpositions;

Fig. 31 is a partial section on the line 3131 of Fig. 29;

i Fig. 32 is a View similar to 31 showing certain parts in differentpositions;

Fig. 33 is a partial vertical section on the line 33--33of Fig. 29;

Fig. 34 is a similar view showing certain parts in different positions;

Fig. 3'5 is a partial-section taken on line 35-35 of Fig. 4; v I Fig. 36is a partial elevation of the electric contact operating means; i

Fig. 37 is a plan view of the parts shown of Fig. 36, parts beingarranged as shown in full lines in the last mentioned figure;

Fig. 38 is a view similar to Fig. 36 with certain parts in differentposition;

Fig. 39 is a view similar to Fig. 37 showing the parts in the positionsin Fig. 38;

F ig. 10 is a vertical section through the hinged detector parts on theline 4t0-40 of Fig. 39:

Fig. ll is a vertical section through said parts on the line 41-411 ofFig. 40;

the

co-operate with the detector to stop the motor; 1

Fig. 46 is a horizontal section taken sub stantially on the line 416- 16of Fig. 48.

Fig. 47 is a top plan view of a liner carrying stack holder; and

Fig. 18 is a side view thereof partly in elevation and partly insection.

For the purpose of illustrating my invention I have shown on the drawinga machine or apparatus in which its several features are embodied. Itwill be manifest; however, as the invention is better understood thatthe structure shown is merely for the purposes of illustration andsubject to material modification without departingffrom the spirit ofthe invention- I Referring tothe embodiment ofthe invention shown on thedrawing in detail reference characters indicates a main frame of. anysuitable'or preferred construe.- tion adapted to carrying theopera-tingparts of the device, being shown in the. present instance as consist-ingof a: sub-base 76 upon legs 77 and an' upper head '78 supported upon.uprights 79 from the sub-base. Two bearing arms or brackets 812and 82extend up from bed 78 and providebearings 83 and 84 for a maindrivingshaft 86 having al pulley 87 adapted to actuate all of the driveninstrumentalities.in themachin'e. The shaft 86 is provided with a crankportion between the bearings 83 and Siwhich, through a connecting arm orrod 88; imparts reciprocation to adie carrying head 89 slidable in ways91 of the character frequently providedin dieand punch presses.

Referring more particularly to- Figs. 10

and 11, it will be noted that the head 89 is provided with a diecarrying member 92 in which are mounted two dies 93 and 9% arranged inalignment from the front to the back of the machine,.the front die 93cutting out the core centers 95 andthe'back die 94.; cutting out theannular gaskets 96, all as. will be hereinafter more fully described.The two dies 93 and 94 cooperate with a fixed. female die 97 having dieapertures 98 and 99 appropriately. positioned to receive the dies 93Iand94 in the operation of the apparatus, is being understood thatthe-gaskets and cores or centers in the present instance are cut frompaper or other suitable material interposed above the die lIO hasapertures through which these dies may project intheir cuttingoperation, retraction of the head 89' and die carrying member causingthe dies to passnpwardly through'the stripper plate prevents the webfollowing the dies on their upper stroke.

The stripper plate 101 is secured to the,

end of a plurality of rods 102 positioned through the die carryingmember and hav ing heads 103 at 1 the upper side of said member, thelower ends ofthese rods be-' ing threadedly engaged with a strippingplate; Springs 104 embrace theends of the rods'between the strippingplate and the lower face of thedie carrying member so that during theinitial upward movement of the head thestripper plate presses down uponthe web material and p-reventsit following the dies. The die 94 isprovided with a yielding plunger 105 having a stem 106 extending throughthe die 94 and surrounded by a spring 107 disposed between the" plungerhead and the die itself to press the plunger downwardly away from .thedie. hen the die descends a pilot 108 enters in'tothe bore 109 in astackholder 11]. to

center the holder and permit the threading over it of the liner after itis cut. This construction will be more fully hereinafter explained.

The gasket lining material in the pres ent instance isprovided from astrip of suitable material which for certain purposes of this inventionmay be considered to be continuous. This strip is provided :in the formof a roll 112 positioned upon a roll holding shaft 113, reference beinghad in this connection more particularly to Figs. 3 to 5 and 10'and 11.The shaft 113 is provided with end pins 114 which rest in brackets 115extending out at the front of the machine. The web of paper indicated at116 passes from the roll 112 between a pair of rolls, indicatedrespectively at 117 and 118, located justabove the roll 112 and at thefront ofthe machine. .From the rolls 117 and 118 the web extends betweenthedies performing the cutting operations power driven and actuatedintermittently to advance the paper after each cuttingoperation.

The rolls 117 to 121 inclusive are pro vided with outwardl extendinstuds 122 at each end, which studs'are housed in suitable hearings orbrackets 123 extending out from the frame. In'the present instance thestuds of the lower rolls 118 and 121 rest in fixed bearings and thestuds of the upper rolls 117 and 119 are engaged in bearing blocks 124in such brackets, said blocks feeling the pressure of springs 125interposed between the blocks and adj usting screws 126 which may bescrewed up or down through the tops of the brackets gearconnections movetogether. Motion is imparted to these rolls by aratcliet driveconnection at the right hand end of lower front feed roll 118.

Referring more particularly now to Figs. 3, 4, 13 and 16, it will benoted that a ratchet wheel 131 is fast on the end of the roll shaft 122,adaptedto be engaged by a pawl 132 onone arm of a. rocking bell crank133 loose on said shaft 122. The other arm of this bell crank isconnected by a link 134 with the free end of a lever 135 pivoted at 136in a bearing arm 137 extending up from the bed 78 of the machine.

The lever 135 is pivotally connected midway its ends with a verticallyreciprocating rod or bar 138 having a bearing in an aperture 139 in thebed and connected at' its upper end in a head 141 pivotally secured toan end of a bell crank lever 142 having a bearing orlpivotal shaft 143carried in a bearing hub or support 144 carried at the upper end of anupright housing 145 extending. up at the right of the machine (Figs; 1,3 and 4). The arm of the bell crank 142 connected with the head 141 isprovided with a roller 140 lo. cated above the shaft 86, which rollerengages a cam 147 fast on the shaft 30. A spring148 is interposedbetween the free end of the other arm of the bell crank 142 and an arm149 extending out from a shaft 115 151,said springrserving to cause theroller 146 to follow the'camin its movement and actuate the feedingdevice, the purpose of the arm 149 and its attendant mechanism will belater hereinafter more fully iex- 120 plained. v i

At each rotation of the crank shaft 86, the two dies are operated, theone to cut a core or center and th other to cut a liner from aportionfof the webfroin which the 125 core or center has already beenremoved, and when the punches have been lifted above the paperktheratchet mechanism, as. just described, through reciprocation of the bar138 causes the paper to be fed forward a unit 130 length; that is to thedistance between the die centers positioning the portion from which thecore is out accurately beneath the rear die and bringing a new portionof paper beneath the forward die for the next descent of the dies. i

It is intended that the machine embody ing my present invention shallonly operate whileand at such times as the paperis feedingv properly in:order that only perfectly formed gaskets may be provided. To this end asystem of safety devices or detectors are provided to halt the paperfeed should the. paper become torn in the machine or should themachine'for some other reason fail to feed properly. Th first of thesedevices is controlled by the paper as it leaves the feed rolls 117 and118 at the front of the machine. Justinwardly of these rolls areprovided a pair of paper web engaging rolls 152 and 153 (Figs. 10 11, 29and30); The roll 152 is freely rotatable and constitutes a supportingroll beneath the web of; paper. 7 It is provided with bearing pin 154mounted 161, 162 of diameter equal to the diameter of the respectiverolls and adapted to intermesh when the frame is moved down to thehorizontal position shown in Fig. 29, the roll 153 in such positionresting upon the roll 152 or rather upon the paper web which passesbetween them. The roll 15 3 maybe termed a measuring roll and throughattendant mechanism about to be described causes a stoppage ot-the f6GCl11'1gd8VlC8 should paper cease to pass between it and the roll 152 orshould insufficient paper pass between these rolls ata single feedingaction. The two 'rolls'152 and 153 are rotated by frictional contactwith the'paper itself.

The shaft 157' is provided at its end adjacent the pivotal axis 159 witha wheel 163 (Figs. 5, 29, 30, 33 and 34) having a peripheral flange orweb 164 extending out at the side and away from the roll 153. This 7.web is provided with a transverse slot 165 at one point, said slotbeing of tapering form and wider at th inner side than at the ,outerside of the web. The slot 165 is adaptr ward the front.

ed to receive a tapered "tooth or lug 166 formcdon the end of the arm167 of a lever '168. Thelever 168 is fulcrumed upon a The lever 168extends of the flange 164' of the wheel 163. The

wheel 163 and the roll 153 make a complete revolutionat each -properfeeding of the paper web and at theend and beginning of said revolutionit is intended that the tooth 166 will rest in the recess or tapered,slot cuit preventing the feeding of the paper if,

th tapered tooth 166 does not move down into the slot which circuitvwill behereinafter more fully described. This circuit, however, containscontacts kept open so'long. as the paper is feeding properly and closedifthe tooth 166 has not entered the tapered slot when the punch shouldoperate.

These contacts consist of'two conductor bars 17 5 and 176 mounted uponan insulating backing 177 supportedby an upwardly extending bearingsupport 178 (Figs531, 32).. A contact 179 slidable over contact 176 ismounted on lever 168, said contact 1 179 being always electricallyconnected'with contact 176 and being otherwise insulated throughsuitable 1nsulat1on. Anothercontact .181 always engaging contact 175 ismounted upon the end of a pin or rod 182 on a vertical movable rod 184,said rod having a bearing in an outwardly extending end 185 of thebearing support 178 and connected at its lower end withla pin and slotconnection 186 (Fig. 29) with the lever 168, the shoulder pin or screw-188 extending, through the slot permitting a play between these parts aswill be later described, whether the tooth 166 of the lever 168 movesinto the slot 165. or not.

A. springv 189 is interposed between the arm 185 of the bearing supportand a collar.

191 fixed on the rod, which spring normally holds the rod and lever inelevated position. Viewing Figs. 29 and 30 itwill be noted that an arm192 extends out from the crosshead and has a slidingfit over the end ofthe rod 184. Downward movement of the crosshead causes this! arm 192 toengage the collar 191 and move it down as the crosshead reaches thelower end of its stroke at which time the paper feeding apparatus shouldbe stationary. If the lever cannot move down with the tooth 166 passinginto the tapered slot, the contact 179 is in position to be engaged byhead 193 on the end of the pin orrod 182, which engagement locks thefeeding mechanism against further action as will be later described. Aspring 194 engages the lever 1.68 and the insulating block 183 to keepthese members apart except at such carried in an insulating housing 183fixed

